Morton has appeared on Broadway in Sondheim on Sondheim, Cyrano de Bergerac, Hair and Taboo (also on the West End). His portrayal of Boy George in Taboo on both continents won him an Olivier Award and a Tony Award. His Off-Broadway credits include Brundibar, Caligula, Howard Katz, and more. Morton has released two solo albums, NewClear and Caledonia.